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Finding the Fourth Proportional to 489,711.98, 675,802.52 and 274,852.04

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Solution

The fourth proportional to 489,711.98, 675,802.52 and 274,852.04 is: 379,295.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,711.98 : 675,802.52 = 274,852.04 : x
  2. Step 2: Convert to fraction form
    489,711.98/675,802.52 = 274,852.04/x
  3. Step 3: Cross multiply
    489,711.98x = 675,802.52 × 274,852.04
  4. Step 4: Simplify right side
    489,711.98x = 185,745,701,259.14
  5. Step 5: Solve for x
    x = 185,745,701,259.14/489,711.98
  6. Step 6: Final answer
    x = 379,295.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.